645048944

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{211}}^1\times {\mathrm{1217}}^1$

素因数の和:1593

約数の個数: 40

約数和(自身を含む): 1264741968

約数和(自身を除く): 619693024

約数列:

[1, 2, 4, 8, 16, 157, 211, 314, 422, 628, 844, 1217, 1256, 1688, 2434, 2512, 3376, 4868, 9736, 19472, 33127, 66254, 132508, 191069, 256787, 265016, 382138, 513574, 530032, 764276, 1027148, 1528552, 2054296, 3057104, 4108592, 40315559, 80631118, 161262236, 322524472, 645048944]

約数ペア:

[(1, 645048944), (2, 322524472), (4, 161262236), (8, 80631118), (16, 40315559), (157, 4108592), (211, 3057104), (314, 2054296), (422, 1528552), (628, 1027148), (844, 764276), (1217, 530032), (1256, 513574), (1688, 382138), (2434, 265016), (2512, 256787), (3376, 191069), (4868, 132508), (9736, 66254), (19472, 33127)]